South Dakota
South Dakota Department of Agriculture and Natural Resources
Quick Summary
For most South Dakota projects disturbing 1 acre or more, you need a state NPDES Construction General Permit and a SWPPP. No permit fee is required, and inspections occur every 14 days.
This summary may repeat values the official source disagrees with (NOI lead time, application method, fee). See the flagged fields below.
Construction Permit
Permit Document ↗- Permit Name
- NPDES General Permit for Stormwater Discharges Associated with Construction Activity (Permit No. SDR10)
- Threshold
- ≥ 1 acre of land disturbance (or < 1 acre if part of a larger common plan of development or sale that will ultimately disturb ≥ 1 acre); sites disturbing ≥ 5 acres that discharge to waters of the state require a Notice of Intent
- NOI Lead Time
- NOI must be submitted to DANR at least 7 calendar days before the commencement of construction activity; authorization is granted upon receipt unless DANR requests additional information
The agency's own page appears to have newer information for NOI Lead Time than the value shown above. Both are below — treat the source as more likely current, and confirm with the agency.
- This directory publishes
- NOI must be submitted to DANR at least 7 calendar days before the commencement of construction activity; authorization is granted upon receipt unless DANR requests additional information
- The official source indicates
- The NOI must be submitted at least 15 days prior to the commencement of construction; a permit will not be issued until all necessary information has been received, including payment of the annual fee
- “the Notice of Intent (NOI) must be submitted at least 15 days prior to the commencement of construction. Please be aware that a permit will not be issued until all necessary information has been recei”
- Application Method
- Paper NOI submitted by mail or in person to DANR; South Dakota does not currently offer a fully online NOI submission portal — paper forms are the standard method; applicants may contact DANR's Water Quality Program for current submission procedures
The agency's own page appears to have newer information for Application Method than the value shown above. Both are below — treat the source as more likely current, and confirm with the agency.
- This directory publishes
- Paper NOI submitted by mail or in person to DANR; South Dakota does not currently offer a fully online NOI submission portal — paper forms are the standard method
- The official source indicates
- Notices of Intent are no longer accepted by hard copy or email. You must use the CDX portal to submit a project coverage request.
- “Notices of Intent are no longer accepted by hard copy or email. You must use the CDX portal to submit a project coverage request.”
- Fee
- No permit application fee for the SDR10 general permit NOI at the state level; South Dakota does not charge a fee for construction stormwater general permit coverage
The agency's own page appears to have newer information for Fee than the value shown above. Both are below — treat the source as more likely current, and confirm with the agency.
- This directory publishes
- No permit application fee for the SDR10 general permit NOI at the state level; South Dakota does not charge a fee for construction stormwater general permit coverage
- The official source indicates
- NOIs must also include the first year's stormwater fee: <5 acres $100, 5 to <40 acres $250, 40 to <80 acres $500, 80+ acres $750
- “NOIs must also include the first year's stormwater fee, billed to the owner of the project: <5 acres $100, 5 to < 40 acres $250, 40 to < 80 acres $500, 80+ acres $750”
- Permit Expires
- February 16, 2028
SWPPP Requirements
Permit Document ↗- SWPPP Required
- Yes
- PE Cert Required
- No
- Template Available
- Yes
Inspection Requirements
Permit Document ↗- Frequency
- At least once every 14 calendar days during active construction, and within 24 hours after any storm event producing ≥ 0.5 inches of rainfall in a 24-hour period; during periods of inactivity (no land disturbance), inspections may be performed at least once per month
- Rain Trigger
- Within 24 hours of any storm event producing ≥ 0.5 inches of rainfall in a 24-hour period
- Inspector Qualification
- No specific state certification is mandated by the SDR10 permit; inspections must be performed by a 'qualified inspector' who is knowledgeable in the principles of stormwater pollution prevention; DANR recommends training consistent with programs such as CPESC, but does not require a specific license or credential
- Accepted Certifications
- No state-specific cert required; inspector must be a 'qualified inspector' knowledgeable in stormwater pollution prevention; CPESC, CESSWI accepted
Discharge Standards
Permit Document ↗- Turbidity Limit
- No numeric NTU turbidity limit in SDR10; narrative water quality standards apply
Post-Construction
DANR ↗- Required
- Yes
Impaired Waterbody / TMDL Requirements
Standard ProvisionsSouth Dakota construction stormwater permit has standard provisions. No specific heightened requirements are triggered by proximity to 303(d)-listed impaired waters in the general permit; standard erosion and sediment controls apply statewide.
Program Contact
Contact Page ↗- Phone
- (605) 773-3351
State-Specific Notes
South Dakota is a delegated NPDES state and administers its construction stormwater program through the DANR Water Quality Program. The state permit SDR10 mirrors many of the EPA Construction General Permit (CGP) requirements but is issued under South Dakota state authority. South Dakota's program is relatively straightforward with no state-specific inspector certification requirement or PE stamp requirement. The state has a low population and large agricultural land base; construction stormwater issues often intersect with agricultural drainage and tributary water quality concerns, particularly for projects near the Missouri River and Lake Oahe. Operators should also check for local erosion and sediment control ordinances in municipalities such as Sioux Falls and Rapid City, which may have additional requirements.